Document support for the Interrupt Controller for External Devices
(INT-EX) in the Renesas R-Car V4H (R8A779G0) SoC.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/4fdb6ff47f62814aab3b06efd1d4c2d7de83b109.1664368373.git.geert+renesas@glider.be